there has to be a resistor for the motor to spin slower speeds, so they usually put them in the air box to help keep them cool, so it may be a switch or the resistor. I don't know much about the electronics in the sportage.

this is an image off rockauto goes for $50.89 on that site.
[Linked Image]

Sportage sold.........
1999 4runner 4x4 , Tundra brake rotors and calipers (well worth it!) -wifes